I had not been a user of eye primers up until about six months ago. I simply didn't know much about them. Then, I began seeing and hearing about how they make such a difference in how your eyeshadow performs. Supposedly, they help your shadows not only last, but cut back on creasing caused by oily lids (of which I am Queen!), as well as make colors truly POP. So, I armed myself with some of the much touted "best" and proceeded to experiment.
I compared Smashbox Photo Finish Lid Primer, Smashbox 24 Hr Photo Finish Primer, LASplash Splashproof Sealer/Eyeshadow Base, and Too Faced Shadow Insurance.